Shiva Purana
यत्किंचिद्धि व्रतं गृह्य नियमं यजनं तथा ॥ संत्यागः पञ्चयज्ञानां सुरापानस्य तत्समम् ॥ ३२॥
The abandonment of sacred rites, worships and the five daily sacrifices, after performing the same for some time is attended with a sin equal to that of the drinking wine.
english translation
yatkiMciddhi vrataM gRhya niyamaM yajanaM tathA ॥ saMtyAgaH paJcayajJAnAM surApAnasya tatsamam ॥ 32॥
hk transliteration by Sanscript